134.86% is the change from 218 to 512
Calculation steps:
[( 512 - 218 ) ÷ 218] x 100 = 134.86%
Formula
Percentage change = [(512 - 218) / 218] x 100
Subtract the new number by the original number
512 - 218 = 294
294 ÷ 218 = 1.348623853211009
1.348623853211009 x 100 = 134.86%